PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/13-22:42:40
G10     248.2          24.8               15.1 +/-    1.49      29.7 +/-    1.49  0.040 / 0.040
G13     56.1           31.3               10.0 +/-    1.54      17.1 +/-    1.54  0.040 / 0.040
G15     98.5           59.2               12.2 +/-    0.70      13.9 +/-    0.70  0.120 / 0.330
G16     296.9          16.1                9.8 +/-    1.96      23.7 +/-    1.96  0.120 / 0.310
G20     252.9          20.4                7.4 +/-    4.03      16.1 +/-    4.03  0.030 / 0.040
G21     329.0          57.4               11.0 +/-    0.23      12.7 +/-    0.23  0.030 / 0.030
G26     268.9          16.8               14.2 +/-    1.22      33.8 +/-    1.22  0.050 / 0.100
G29     164.4          54.5               12.1 +/-    0.51      14.5 +/-    0.51  0.050 / 0.120